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Home > Research > Buildings > Zero Energy Buildings > Lakeland, FL. > Air Conditioning > Testing > System Audit
Stylized Text: ZEH: Lakeland, Florida.

 

Space Conditioning System Performance Audit

Calculating Thermodynamic Properties of Air

Green Values are entered Red Values are Computed

 

Site ID:
Technician:
Date/Time:
Address:
Utility meter Kh:

 

I. Fan Power (no heating or cooling)

A B C D
Revolution Time Power (W) delta T (F)
Number Seconds A * kh * 3600 / B T(supply) - T(return)

II. Dry Coil Air Flow (heating)

E F G H I
Revolution Time Power (W) delta T (F) Air Flow (CFM)
Number Seconds E * kh * 3600 / F T(supply) - T(return) G * 3.27 / H
  T(supply):  
T(return):

III. Air Conditioner Performance (cooling)

J K L M N
Revolution Time Power (W) Condensate delta T (F)
Number Seconds J * kh * 3600 / K Milliliters in 10 minutes T(supply) - T(return)

 

  Dry Bulb Temperature (F) Wet Bulb Temperature (F)
T(supply)
T(return)

 

O P Q R S
Sensible Cooling (Btu/hr) Latent Cooling (Btu/hr) Total Cooling (Btu/hr) EER(total) (Btu/W) EER(sensible) (Btu/W)
N * I * 1.044 M * 14.04 O + P Q/L O/L

 

Checks using enthalpy calculations:
Total Load (cooling) (Btu/hr):
EER(total) (Btu/W) :
Latent Cooling (Btu/hr):